( Reaffirmed 2003 ) IS : 7016 ( Part I )-1982 Indian Standard METHODS OF TEST FOR COATED AND TREATED FABRICS PART I DETERMINATION ( OF ROLL CHARACTERISTICS First Revision ) Treated Fabrics Sectional Committee, PCDC 16 Chairman SEBI S. L. G~DHI Members LT-COL R. G. WASTRAD ( Alternates to SHRI M. L. BAHRAM Shri S. L. Gandhi ) Ministry of Defence ( DGI ) SHRI A. K. BANDOPADHYA SERI P. L. NAQ (Alternate ) Directorate General of Supplies and Disposals, SERI A. T. BASAK New Delhi SHRI A. R. HALDAR ( Alternute ) Basant Pran Electric Co Pvt Ltd, Calcutta SHRI BASANT Knar~a SHRI J. S. NARULA ( Alternate) Bayer ( India ) Ltd, Bombay SHRI D. J. BHARU~HA SERI K. J. JANARAR ( Alternate) National Organic Chemical Industries Ltd. SHRI T. S. BIDDAPA Bombay _ SERI J. K. VADODARIA ( Alternate ) SHRI A. BOSE Bengal Waterproof Works ( 1940 ) Ltd, Calcutta SHRI B. DUTTA ( Alternate ) National Test House, Calcutta SHRI A. GHOSH JOINT DIRECTOR OF MINES SAFETY Directorate General of Mines Safety, Dhanbad SERI S. C. BATRA ( Alternate ) SERI 2. S. KAJIJI Caprihans India Ltd, Thane DR S. P. MANIK Ministry of Railways SHRI P. K. MUNSHI ( Alternate) ( Continued on page 2 ) 0 INDIAN CoBright 1982 INSTITUTIQN Representing Ministry of Defence (R h D ) STANDARDS This publication is protected under the Indian Copyright Act (XIV of 1957) and reproduction in whole or in part by any means except with written permission of the publisher shall be deemed to be an infringement of copyright under the said Act:' IS : 7016 ( Part I ) - 1982 ( Continued from page 1 ) Members SBRI J. R. MODI SHRI RAMAN M. PATEL SERI K. L. SHAH ( A~trrautc ) RcprcJcnting Ahmedabad Textile Industry's Association, Ahmedabad Bhor Industries Ltd. Bombay Research Central Warehousing Corporation, New Delhi SHRI P. RAMDAS SHRI S. SAMPATHKUMAR ( Alternat ) Fibre glass Pilkington Ltd, Bombay SHRI G. H. RODRICKS East India Rubber Works Pvt Ltd, Calcutta SHRI B. ROY Directorate General of Technical Development SHRI P. P. SHARMA SERI N. K. AQARWAL ( Alternate ) Varma Industrials Ltd, Bangalore SHRI K. SRINIVASAN Director General, IS1 ( Ex-o&i0 Member ) SRRI M. S. SAXENA, Director ( P 8s C ) Secretary Deputy Director SHR1V.S. LAL (P &C), ISI Methods of Test for Treated Fabrics Subcommittee, Convener SHRI S. L. GANDHI PCDC 16 : 6 Ministry of Defence (R & D ) Members SHRI M. L. BAHRANI (Alternate to Shri S. L. Gandhi ) Calico Chemicals, Plastics and Fibres Division, DR B. R. C. ANAND Bombay SHRI S. MITRA ( Alternate ) Directorate General of Supplies and Disposals, SHRI A. T. BASAK New Delhi SRRI P. K. BASU (Alternate ) Madura Coats Ltd, Madurai SHRI A. CHELLARAJ SHRI S. GNANASE~HAR~N ( Alternate ) National Test House, Calcutta SHRI A. GHOSR Ministry of Railways DR S. P. MANIK SHRI P. L. NAP Ministry of Defence ( DGI ) SHRI H. L. SRIVASTAVA ( Alternate ) Shri Ram Institute for Industrial Research, Delhi DR J. K. NIGAN SHRI K. K. JUNEJA ( Alternate ) DR S. Y. PANDI~ Bayer ( India ) Ltd, Bombay DR P. V. RAIKAR ( Altcrnatc 1 Synthetics and Chemicals Ltd, Bombay SHRI M. M. PATEL ' SRRI R. K. NAYAK ( Alternate ) East India Rubber Works Pvt Ltd, Calcutta SHRI B. ROY Bhor Industries Ltd, Bombay SHRI J. M SKROFF SHRI S. K. VERMA Caprihans India Ltd, Bombay SHRI Z. S. KAJIJI ( Alternate ) ( Continued on page 9 ) 2 IS : 7016 ( Part I ) - 1982 Indian Standard METHODS OF TEST FOR COATED AND TREATED FABRICS PART I DETERMINATION OF ROLL CHARACTERISTICS ( First Revision ) 0. FOREWORD 0.1 This Indian Standard ( Part I ) ( First Revision ) was adopted by the Indian Standards Institution on 28 March 1982, after the draft finalized by the Treated Fabrics Sectional Committee had been approved by the Petroleum, Coal and Related Products Division Council. 0.2 This standard was published in 1973 and is being revised to incorporate the changes considered necessary as a result of experience gained in the implementation of this standard during this period. 0.3 Coated and treated fabrics are normally sold in the roll form. It, therefore, becomes essential to find out the correct length, width and thickness of the rolls of fabric before accepting the supply. Further, the mass per unit area of the coated and treated fabric, base fabric and of the coating are important requirements of contract for such fabrics. Determination of all these characteristics are collectively called the roll characteristics. 0.4 This standard is mainly based on IS0 2286-1972 `Fabrics coated with of roll characteristics', issued by rubber or plastics - Determination International Organization for Standardization. 0.5 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance The number of significant places retained in the with IS : 2-1960*. rounded off value should be the same as that of the specified value in this standard. *Rules for roundingoff numerical values ( reuisrd). 3 . ;&;t$ 3. IS : 7016 ( Part I ) - 1982 1. SCOPE 1.1 This standard ( Part I ) describes the methods for determining the length, width, net mass, mass per unit area, and thickness of rolls of coated and treated fabrics, with the exception of knitted type fabrics. NOTE - It should be noted that the roll cannot normally be conditioned in a standard atmosphere and, therefore, the results may be influenced by variation of moisture due to changes in atmospheric conditions. 2. DETERMINATION OF THE LENGTH OF A ROLL 2.1 General Method 2.1.1 Aj$z,arabus -Flat table, not less than 5 m long, and at least as wide as the roll to be tested. Both longitudinal edges of the table should be marked off in 1 m lengths, at least one of these lengths being subdivided into 10 mm divisions. 2.1.2 Procedure -Trim the cut end of roll, if necessary, so that it is at right angles to the warp (longitudinal) direction of the roll, such trimming being confined to the minimum which is necessary to effect this. With the cut end of the roll aligned with the zero mark on the table, unroll the material along the table so that no tension is introduced. On reaching the limit of the table, mark the back of the roll by some suitable method on both edges to coincide with a known division of length. Reroll the portion that has been measured. Lay out, free from tension, a further portion of the unmeasured length and measure from the marked edges, as before. Repeat this process until the end of the roll is reached, trimming this, if necessary, as before. Measure the final length to the nearest 50 mm. 2.1.3 Epression of Results - Report the length of the roll, the sum of all the readings, adjusted to the nearest 50 mm. 2.2 Drum in metres, as Method 2.2.1 Procedure -Run the coated fabric over a measuring drum with Determine just enough uniform tension to keep it running flat and true. the length from the dial or counter on the drum. Report the length ofthe roll in metres, adjusted to the nearest 50 mm. 3. DETERMINATION OF TIiE WIDTH OF A ROLL 3.1 Apparatus 3.1.1 Flat Table - not less than 2 m long, than the width of the roll to be tested. and at least 50 mm wider to 3.1.2 Steel Scale - length shall be greater thaxi the width be measured, graduated in centimetres and millimetres. 4 of the roll .9 1 IS : 7016 ( Part I ) - 1982 3.2 Procedure - &roll the material along the table so that it is laid In case of fabrics coated out smoothly without tension in either direction. on one side, the coated side shall be kept upwards. Record to the nearest 5 mm at least five different measurements of width uniformly distributed along the full length of the roll or piece. 3.3 Expression of Results - Calculate the mean of the recorded widths adjusted to nearest 5 mm and report the value obtained as the average usable width. Report also the minimum usable width recorded. 4. DETERMINATION OF UNIT AREA OF ROLL 4.1 Determination Roll THE NET MASS OR SAMP-LE and Mass AND MASS PER of the Net Mass Per Unit Area of a at 4.1.1 Apparatus - Weighing device, full scale deflection to 0.10 percent. with a calibrated scale, accurate 4.1.2 Procedure - Place the roll of material centrally on the pan or other Ensure that the roll and supporting arrangement of the weighing device. Determine and record its support are free of contact with other bodies. the gross mass. Determine and record the mass of the tube or former upon which the material has been rolled, and deduct this from the gross mass. Record the value thus obtained as the net mass. Determine the length and width of the rollin accordance with the procedure given in 2 and 3, and calculate the mass per unit area in grams per square metre to the nearest 5 g/m". 4.1.3 Exfiression of Results - The net mass should be expressed in kilograms to the nearest 0'10 kg. The mass per unit area should be expressed in grams per square metre to the nearest 5 g/m*. 4.2 Determination of the Mass Per Unit Area of a Sample rectangular or circular 4.2.1 inform, 4.2.2 Test Piece - The test piece shall be square, and have an area of 10 000 -J= 100 mm2. Procedure 4.2.2.1 Cut from the sample three test pieces, one from the centre, and the other two symmetrical with the first, in such a manner that their external edge is between 50 and 150 mm from the selvedge of the sample taken along a line which makes an angle of 45" with the length of the roll. Designate these test pieces A, B and C respectively. 4.2.2.2 ConditioningCondition the test pieces 65 f 5 percent relative humidity for 48 hours prior 5 at 27 -& 2°C and Subject to testing. IS : 3016 ( Part I ) - 1982 to agreement between the purchaser and the supplier, the conditioning For all test purposes, the minimum time may be curtailed to 24 hours. time between vulcanization or curing and testing shall be 16 hours. Whenever possible, the time between vulcanization or curing and testing should not exceed three months. In other cases, tests shall be made within two months of the date of receipt by the customer of the product. 4.2.2.3 Weigh the test pieces to the nearest 0.005 g, and calculate the mass per unit area in grams per square metre. 4.2.3 Expression of Results - The mass per unit area should be expressed as the average of the calculated values in grams per square metre, adjusted to nearest 5 g/m2. NOTIC - The procedure given in 4.2.2 is intended for use when a small sample is The result is considered applicable to the sample sent to the laboratory for test. but not to the piece or lot of goods from which the sample was taken, unless the If this is done, each number of samples and methods are agreed by those concerned. sample should be tested in accordance with the procedure given in 4.2.2 and the results averaged to obtain the average mass per unit area in grams per square metre 4.3 Determination 4.3.1 Apflaratus Balance Flask - of the Mass Per Unit Area of the Base Fabric 4.3.1.1 accurate to 0.005 g. 500 ml capacity, 4.3.1.2 4.3.1.3 4.3.1.4 fitted with a reflux condenser. Water-bath Oven -with natural air circulation. having 4.3.2 Test Piece an area of 10 000 f 4.3.3 Procedure The test piece shall be a square or rectangIe, 100 mm2. 4.3.3.1 Cut from the sample three test pieces, one from the centre, and the other two, symmetrical with the first, in such a manner that their external edge is ~between 50 land 150 mm from the selvedge of the sample taken along a line which makes an angle of 45" with the length of theroll. Immerse each test Designate these test pieces, A, B and C respectively. piece separately in 150 ml of an appropriate solvent or- swelling agent. Decant and remove where possible the bulk of the coating from the base fabric. In case extraction is no~t sufficient, refluxing for 30 minutes may be done. Immerse again for 30 minutes, using fresh solvent, and decant. Thereafter, immerse the fabric and any loose threads in 150 ml of solvent, Remove with occasional agitation for 30 minutes at room temperature. the stripped test pieces, together with any loose threads, from the solvent 6 &; y&t+? tT* IS : 7016 ( Part I ) - 1982 and wash them in 100 ml of acetone. Dry the test pieces for one hour at a temperature of approximately 100°C. 4.3.3.2 Condition the stripped test pieces for 24 hours at 27 + 2°C and 65 &- 5 percent relative humidity, and weigh to the nearest 0'005 g. 4.3.3.3 Wash the stripped test pieces with a further quantity of the appropriate solvent in the manner indicated, wash in acetone, dry and condition and weigh them, as before. If the second weighing differs from the first by more than 1 percent, repeat the solvent treatment until the difference is less than 1 percent. IJse the final mass for calculating the mass per unit area of the fabric. 4.3.4 Expression of Results - The mass per unit area of the fabric shall be expressed as the mean value obtained from the three results in grams per square metre to the nearest 5 g/ms. method is not valid for fabrics which are soluble in the solvent NOTE 1 -The used for the test. NOTE 2 -The mass of the fabric after removing the coating may be different from that of the original fabric. 4.4 Determination of the Mass Per Unit Area of the Coating 4.4.1 Procedure - It is expedient to consider the mass per unit area of the coating as the difference between the mass per unit area of the coated fabric and the mass per unit area of the base fabric. From the mass per unit area of the coated fabric ( determined according to 4.2) subtract the mass per unit area of the base fabric for the corresponding test piece ( determined according to 4.3 ). 4.4.2 Exxpression of Results - The mass per unit area of the coating shall be expressed in grams per square metre as the mean of the three values found in accordance with the procedure given in 4.4.1. 5. DETERMINATION 5.1 Apparatus 5.1.1 Gauge- The gauge shall be of dead weight type, equipped with a dial graduated to read directly to 0*02 mm. The presser foot should be circular having a diameter of 9.5 f 0.02 mm or 50 f 0.05 mm. The presser foot and connected moving parts shall be loaded to give the pressure according to the category of articles being measured. The presser foot and anvil surfaces shall be plane to within 0.002 mm, and parallel to one another to within O-002 mm. The gauge shall be calibrated for the actual load exerted by the presser foot by means of any device so arranged to measure the total force exerted by the presser foot at the several gauge readings or presser foot levels selected for 7 OF THICKNESS IS : 7016 ( Part I ) - 1982 calibration. The presser foot shall from a higher one: be brought to each calibration level Pressure a) Ordinary articles 24 kN/m"* 10 kN/m2* b) Articles sensitive to pressure 5.2 Procedure 5.2.1 Measure the thickness on an oblique line drawn at an angle of 45" to the length of the roil preferably at a distance of about 1 m from the end of the roll. On this line, make five evenly distributed measurements, the first being taken at a position between 50 and 150 mm from the selvedge. 5.2.2 Place the coated fabric on the anvil of the gauge, smoothen it but without tension. Lower the presser foot into the material ( without impact ), allow it to rest for 10 seconds, and observe and record the reading of the dial. I 5.3 Expression of Results - Express the results in millirnetres. The mean linear thickness in millimetres is the artihmetric mean of the five measured values on the same oblique line. ll kgf/cm* = 9&07 kN/m*. 1s : 7016 ( Part 1) - 1982 ( Continuedfrom page 2) for Physical Methods of Test PCDC16:6:1 for Treated Fabrics, Panel Convener DR B. R. C. ANA~D Representing Calico Chemicals, Bombay Plastics and Fibres Division, Members SRRI A. T. BASAK SHRI P. K. BASU ( Alternate ) SIXRIBASANT KUMAR SARI J. S. NARULA (Alternate ) SHRI T. S. BIDDAPA DR P. D. TRIVEDI ( Alternate) SRRI B. DUTTA SHRI A. GHOSH Directorate General New Delhi Basanb &-an Electric National Organic Bombav of Supplies and Disposals, Co Pvt Ltd, Calcutta Chemical Industries Ltd, Bengal Waterproof Works ( 1940 ) Ltd, Calcutta National Test House, Calcutta INDIANON, TREATED STAFDARDS FABRICS IS: 1001-1956 1259-1977 1421-1964 2037-1962 2089- 1977 2244-1972 2789-1972 3322-1965 3768-1966 4355-1977 4501-1967 4810-1968 5915-1970 61 lo-1971 6803-1972 7016 ( Part ( Part (Part ( Part ( Part ( Part ( Part (Part 8698-1977 8699-1977 ",;%~ifeymp diaphram fabrics: (a) synthetic rubber proofed (b) varnish Vinyl coated fabrics ( second revision ) Cellulose nitrate coated fabrics (revised) Tracing cloth Common proofed canvas/duck and paulins ( tarpaulins ) ( second reuision ) Glossary of terms relating to treated fabrics (Jirsr reuision ) Special proofed paulins (tarpaulins) (Jirti revision) PVC-coated fabrics for foul weather clothing PVC-ventilation tubing ( flexible ducting ) Fire resistant brattice cloth (first revision) Aprons, rubberized, acid and alkali resistant Fumigation sheets and covers, rubberized Single texture rubberized water-proof fabrics Double-texture rubberized fabrics Special proofed canvas and duck Methods of test for treated fabrics: Determination of roll characteristics (first revision ) I )-1982 Determination of breaking strength and extension at break II )-1973 III )-1973 Tear strength Resistance to damage by flexing IV )-1973 Coating adhesion V )-1973 Bursting strength VI )-1973 Water proofness VII )-I973 VIII )-1973 Accelerated ageing PVC fabrics for footwear fabrics Expanded vinyl coated fabrics